diff options
Diffstat (limited to '')
| -rw-r--r-- | drv_M50530.c | 138 |
1 files changed, 72 insertions, 66 deletions
diff --git a/drv_M50530.c b/drv_M50530.c index cddf0cc..b576ebe 100644 --- a/drv_M50530.c +++ b/drv_M50530.c @@ -1,4 +1,4 @@ -/* $Id: drv_M50530.c,v 1.12 2004/06/20 10:09:54 reinelt Exp $ +#/* $Id: drv_M50530.c,v 1.13 2004/06/26 09:27:20 reinelt Exp $ * * new style driver for M50530-based displays * @@ -23,6 +23,12 @@ * * * $Log: drv_M50530.c,v $ + * Revision 1.13 2004/06/26 09:27:20 reinelt + * + * added '-W' to CFLAGS + * changed all C++ comments to C ones ('//' => '/* */') + * cleaned up a lot of signed/unsigned mistakes + * * Revision 1.12 2004/06/20 10:09:54 reinelt * * 'const'ified the whole source @@ -122,9 +128,9 @@ static unsigned char SIGNAL_IOC1; static unsigned char SIGNAL_IOC2; static unsigned char SIGNAL_GPO; -// Fixme: GPO's not yet implemented +/* Fixme: GPO's not yet implemented */ static int GPOS; -// static int GPO=0; +/* static int GPO=0; */ typedef struct { @@ -138,31 +144,31 @@ static MODEL Models[] = { }; -// **************************************** -// *** hardware dependant functions *** -// **************************************** +/****************************************/ +/*** hardware dependant functions ***/ +/****************************************/ static void drv_M5_command (const unsigned int cmd, const int delay) { - // put data on DB1..DB8 + /* put data on DB1..DB8 */ drv_generic_parport_data (cmd&0xff); - // set I/OC1 - // set I/OC2 + /* set I/OC1 */ + /* set I/OC2 */ drv_generic_parport_control (SIGNAL_IOC1|SIGNAL_IOC2, (cmd&0x200?SIGNAL_IOC1:0) | (cmd&0x100?SIGNAL_IOC2:0)); - // Control data setup time + /* Control data setup time */ ndelay(200); - // send command - // EX signal pulse width = 500ns - // Fixme: why 500 ns? Datasheet says 200ns + /* send command */ + /* EX signal pulse width = 500ns */ + /* Fixme: why 500 ns? Datasheet says 200ns */ drv_generic_parport_toggle (SIGNAL_EX, 1, 500); - // wait + /* wait */ udelay(delay); } @@ -170,11 +176,11 @@ static void drv_M5_command (const unsigned int cmd, const int delay) static void drv_M5_clear (void) { - drv_M5_command (0x0001, 1250); // clear display + drv_M5_command (0x0001, 1250); /* clear display */ } -static void drv_M5_write (const int row, const int col, const unsigned char *data, const int len) +static void drv_M5_write (const int row, const int col, const char *data, const int len) { int l = len; unsigned int cmd; @@ -197,28 +203,28 @@ static void drv_M5_defchar (const int ascii, const unsigned char *matrix) drv_M5_command (0x300+192+8*(ascii-CHAR0), 20); - // Fixme: looks like the M50530 cannot control the bottom line - // therefore we have only 7 bytes here + /* Fixme: looks like the M50530 cannot control the bottom line */ + /* therefore we have only 7 bytes here */ for (i=0; i<7; i++) { drv_M5_command (0x100|(matrix[i] & 0x3f), 20); } } -// Fixme: GPO's +/* Fixme: GPO's */ #if 0 static void drv_M5_setGPO (const int bits) { if (Lcd.gpos>0) { - // put data on DB1..DB8 + /* put data on DB1..DB8 */ drv_generic_parport_data (bits); - // 74HCT573 set-up time + /* 74HCT573 set-up time */ ndelay(20); - // send data - // 74HCT573 enable pulse width = 24ns + /* send data */ + /* 74HCT573 enable pulse width = 24ns */ drv_generic_parport_toggle (SIGNAL_GPO, 1, 24); } } @@ -274,16 +280,16 @@ static int drv_M5_start (const char *section, const int quiet) if ((SIGNAL_IOC2 = drv_generic_parport_wire_ctrl ("IOC2", "AUTOFD"))==0xff) return -1; if ((SIGNAL_GPO = drv_generic_parport_wire_ctrl ("GPO", "INIT" ))==0xff) return -1; - // clear all signals + /* clear all signals */ drv_generic_parport_control (SIGNAL_EX|SIGNAL_IOC1|SIGNAL_IOC2|SIGNAL_GPO, 0); - // set direction: write + /* set direction: write */ drv_generic_parport_direction (0); - drv_M5_command (0x00FA, 20); // set function mode - drv_M5_command (0x0020, 20); // set display mode - drv_M5_command (0x0050, 20); // set entry mode - drv_M5_command (0x0030, 20); // set display mode + drv_M5_command (0x00FA, 20); /* set function mode */ + drv_M5_command (0x0020, 20); /* set display mode */ + drv_M5_command (0x0050, 20); /* set entry mode */ + drv_M5_command (0x0030, 20); /* set display mode */ drv_M5_clear(); @@ -300,28 +306,28 @@ static int drv_M5_start (const char *section, const int quiet) } -// **************************************** -// *** plugins *** -// **************************************** +/****************************************/ +/*** plugins ***/ +/****************************************/ -// none at the moment +/* none at the moment */ -// **************************************** -// *** widget callbacks *** -// **************************************** +/****************************************/ +/*** widget callbacks ***/ +/****************************************/ -// using drv_generic_text_draw(W) -// using drv_generic_text_icon_draw(W) -// using drv_generic_text_bar_draw(W) +/* using drv_generic_text_draw(W) */ +/* using drv_generic_text_icon_draw(W) */ +/* using drv_generic_text_bar_draw(W) */ -// **************************************** -// *** exported functions *** -// **************************************** +/****************************************/ +/*** exported functions ***/ +/****************************************/ -// list models +/* list models */ int drv_M5_list (void) { int i; @@ -333,81 +339,81 @@ int drv_M5_list (void) } -// initialize driver & display +/* initialize driver & display */ int drv_M5_init (const char *section, const int quiet) { WIDGET_CLASS wc; int ret; - // display preferences - XRES = 5; // pixel width of one char - YRES = 8; // pixel height of one char - CHARS = 8; // number of user-defineable characters - CHAR0 = 248; // ASCII of first user-defineable char - GOTO_COST = 1; // number of bytes a goto command requires + /* display preferences */ + XRES = 5; /* pixel width of one char */ + YRES = 8; /* pixel height of one char */ + CHARS = 8; /* number of user-defineable characters */ + CHAR0 = 248; /* ASCII of first user-defineable char */ + GOTO_COST = 1; /* number of bytes a goto command requires */ - // real worker functions + /* real worker functions */ drv_generic_text_real_write = drv_M5_write; drv_generic_text_real_defchar = drv_M5_defchar; - // start display + /* start display */ if ((ret=drv_M5_start (section, quiet))!=0) return ret; - // initialize generic text driver + /* initialize generic text driver */ if ((ret=drv_generic_text_init(section, Name))!=0) return ret; - // initialize generic icon driver + /* initialize generic icon driver */ if ((ret=drv_generic_text_icon_init())!=0) return ret; - // initialize generic bar driver + /* initialize generic bar driver */ if ((ret=drv_generic_text_bar_init(0))!=0) return ret; - // add fixed chars to the bar driver - drv_generic_text_bar_add_segment (0,0,255,32); // ASCII 32 = blank + /* add fixed chars to the bar driver */ + drv_generic_text_bar_add_segment (0,0,255,32); /* ASCII 32 = blank */ - // register text widget + /* register text widget */ wc=Widget_Text; wc.draw=drv_generic_text_draw; widget_register(&wc); - // register icon widget + /* register icon widget */ wc=Widget_Icon; wc.draw=drv_generic_text_icon_draw; widget_register(&wc); - // register bar widget + /* register bar widget */ wc=Widget_Bar; wc.draw=drv_generic_text_bar_draw; widget_register(&wc); - // register plugins - // none at the moment + /* register plugins */ + /* none at the moment */ return 0; } -// close driver & display +/* close driver & display */ int drv_M5_quit (const int quiet) { info("%s: shutting down.", Name); drv_generic_text_quit(); - // clear display + /* clear display */ drv_M5_clear(); - // say goodbye... + /* say goodbye... */ if (!quiet) { drv_generic_text_greet ("goodbye!", NULL); } - // clear all signals + /* clear all signals */ drv_generic_parport_control (SIGNAL_EX|SIGNAL_IOC1|SIGNAL_IOC2|SIGNAL_GPO, 0); drv_generic_parport_close(); |